Exhibit 99.1

 The Digital Engagement Company

FOR IMMEDIATE RELEASE

Bridgeline Digital Announces Fourth Quarter and Fiscal 2013 Financial Results

Fourth Quarter 2013 Subscription and Perpetual License Revenue Increased 117% and Fiscal 2013 Subscription and Perpetual License Revenue Increased 60%

Fourth Quarter 2013 Recurring Revenues Increased 36%

Burlington, Mass., December 10, 2013 - Bridgeline Digital, Inc. (NASDAQ: BLIN), The Digital Engagement Company™, today announced financial results for its fourth quarter and fiscal year ended September 30, 2013.

“We continue to ardently focus on building a highly scalable iAPPS business as thousands of quality customers rely on iAPPS for their mission critical website, intranets, and web stores.” said Thomas Massie, Bridgeline Digital’s President and Chief Executive Officer. “Fiscal 2014 will be an inflection year as our legacy revenue becomes an insignificant part of our total revenue and our core business continues to grow rapidly.”

Fourth Quarter Highlights:

Fiscal 2013 Highlights:

Fiscal 2014 Outlook 

“For fiscal 2014, revenue is expected to be approximately $28 million, an increase from $24.5 million in 2013. I expect we will generate positive Adjusted EBITDA for the fiscal year. Further, in fiscal 2014 our revenue projection includes a projected increase of the Company’s core business of approximately 32% from fiscal 2013 and a reduction of non-iAPPS related legacy revenue of approximately $2.5 million. Fiscal 2014 will validate the type of growth company we are” said Thomas Massie, President and CEO of the Company.

Conference Call Information

Bridgeline Digital will host a conference call to discuss fourth quarter and fiscal 2013 results at 4:30 p.m. ET today. To listen to the conference call, please dial (877) 837-3910 within the U.S. or (973) 796-5077 for international callers.

Non-GAAP Financial Measures

This press release contains the following non-GAAP financial measures: non-GAAP adjusted net income, non-GAAP adjusted earnings per diluted share, Adjusted EBITDA and Adjusted EBITDA per diluted share.

Non-GAAP adjusted net income and non-GAAP adjusted earnings per diluted share are calculated as net income or net income per share on a diluted basis, excluding, where applicable, amortization of intangible assets, stock-based compensation and the related tax effects.

Adjusted EBITDA and Adjusted EBITDA per diluted share are defined as earnings before interest, taxes, depreciation and amortization and stock-based compensation charges. Bridgeline uses non-GAAP adjusted net income and Adjusted EBITDA as supplemental measures of our performance that are not required by, or presented in accordance with, accounting principles generally accepted in the United States (“GAAP”).

Bridgeline’s management does not consider these non-GAAP measures in isolation or as an alternative to financial measures determined in accordance with GAAP. The principal limitation of these non-GAAP financial measures is that they exclude significant expenses and income that are required by GAAP to be recorded in the Company's financial statements. In addition, they are subject to inherent limitations as they reflect the exercise of judgments by management about which expenses and income are excluded or included in determining these non-GAAP financial measures. In order to compensate for these limitations, Bridgeline management presents non-GAAP financial measures in connection with GAAP results. Bridgeline urges investors to review the reconciliation of its non-GAAP financial measures to the comparable GAAP financial measures, which is included in this press release, and not to rely on any single financial measure to evaluate Bridgeline's financial performance.

Our definitions of non-GAAP adjusted net income and Adjusted EBITDA may differ from and therefore may not be comparable with similarly titled measures used by other companies, thereby limiting their usefulness as comparative measures. As a result of the limitations that non-GAAP adjusted net income and Adjusted EBITDA have as an analytical tool, investors should not consider them in isolation, or as a substitute for analysis of our operating results as reported under GAAP.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995

All statements included in this press release, other than statements or characterizations of historical fact, are forward-looking statements. These forward-looking statements are based on our current expectations, estimates and projections about our industry, management's beliefs, and certain assumptions made by us, all of which are subject to change. Forward-looking statements can often be identified by words such as "anticipates," "expects," "intends," "plans," "predicts," "believes," "seeks," "estimates," "may," "will," "should," "would," "could," "potential," "continue," "ongoing," or similar expressions, and variations or negatives of these words. These forward-looking statements are not guarantees of future results and are subject to risks, uncertainties and assumptions, including, but not limited to, the impact of the weakness in the U.S. and international economies on our business, our inability to manage our future growth effectively or profitably, fluctuations in our revenue and quarterly results, our license renewal rate, the impact of competition and our ability to maintain margins or market share, the limited market for our common stock, the volatility of the market price of our common stock, the performance of our products, our ability to respond to rapidly evolving technology and customer requirements, our ability to protect our proprietary technology, the security of our software, our dependence on our management team and key personnel, our ability to hire and retain future key personnel, or our ability to maintain an effective system of internal controls as well as other risks described in our filings with the Securities and Exchange Commission. Any of such risks could cause our actual results to differ materially and adversely from those expressed in any forward-looking statement. We expressly disclaim any obligation to update any forward-looking statement.

About Bridgeline Digital

Bridgeline Digital, The Digital Engagement Company™, enables its customers to maximize the performance of their mission critical websites, intranets, and online stores. Bridgeline’s iAPPS® web engagement platform deeply integrates Content Management, eCommerce, eMarketing, Social Media management, and Web Analytics to help marketers deliver online experiences that attract, engage and convert their customers across all digital channels. Bridgeline provides end-to-end Digital Engagement solutions and boasts an award-winning team of interactive services professionals. Headquartered in Burlington, Mass, with nine additional locations throughout the United States and a .NET development center in Bangalore, India. Bridgeline has thousands of quality customers that range from small and medium-sized organizations to Fortune 1000 companies. To learn more, please visit www.bridgeline.com or call (800) 603-9936.

Contact:

Bridgeline Digital, Inc.

Michael Prinn

Executive Vice President

& Chief Financial Officer

781.497.3016

mprinn@blinedigital.com